Blue Laser Treatment for Vocal Cord Lesions: When Is It Used?
The blue laser is a 445-nanometre laser used in laryngeal surgery. It can seal small blood vessels inside tissue (a photoangiolytic effect) and can also cut and vaporise tissue, which is why it can be used for a range of vocal fold conditions including papilloma, polyps, Reinke’s oedema and vascular lesions.1,2 In some centres it is used through a thin endoscope in awake patients in an office setting.1,3
The blue laser is not, however, the first or only option for every vocal fold problem. The method is chosen according to the type, size and position of the lesion, and for some lesions microsurgery with cold instruments under a microscope remains the main approach.5 This guide explains what the blue laser does, what the evidence shows and where its limits lie.
In short
- What it does: it seals blood vessels and can cut tissue, a combination that makes it useful in the larynx.1,2
- Which lesions: papilloma, polyps, Reinke’s oedema, vascular lesions, leukoplakia and some strictures.1,2
- It can be used in the office: in selected patients, without general anaesthesia and while awake.1,3
- Promising results: in a series of 47 patients, 95.75% had a satisfactory outcome and no laser-related complications occurred.2
- It has limits: studies are small and mostly retrospective, and the risk of scarring in cysts should not be overlooked.5
How does the blue laser work?
Lasers are absorbed to different degrees by different tissues depending on their wavelength. Blue laser light is well absorbed by haemoglobin in blood, so it can seal the small vessels feeding a lesion while having less effect on surrounding healthy tissue. In contact with tissue, it can also cut or vaporise it.1,2
The vocal folds are thin, delicate vibrating structures, and voice quality depends on preserving that surface. The aim of the laser is to treat the lesion while protecting the vibrating surface of the vocal fold as far as possible. The instrument is chosen according to which method best achieves that.
When is it used?
In published series, the blue laser has been used for a wide group of lesions, including recurrent respiratory papillomatosis (vocal fold papilloma), vocal fold polyps, Reinke’s oedema, vascular lesions (angiomas), leukoplakia and dysplasia, subglottic stenosis, granulomas and webs.2 Clear improvements in voice questionnaire scores have been reported in papilloma and benign lesions.4
Op. Dr. Esin Özlem Atmış uses blue laser technology in the treatment of laryngeal papillomas. Because papillomas tend to recur, treatment is planned around removing the existing lesions, protecting vocal fold tissue and long-term follow-up together. See our vocal fold papilloma page for more detail.
| Lesion | Role of the blue laser | Note |
|---|---|---|
| Vocal fold papilloma | Removing papillomas and sealing their vessels2,4 | Can recur; long-term follow-up needed |
| Vocal fold polyp | Treatment in the office or in theatre3 | Office and general anaesthesia groups had similar voice outcomes3 |
| Reinke’s oedema | Treatment in the office or in theatre3 | Stopping smoking is part of treatment |
| Vascular lesions | Sealing vessels2 | Uses the photoangiolytic effect |
| Vocal fold cyst | Tried in selected cases in the office5 | Removing the cyst wall under a microscope is the main approach5 |
In the office or in theatre?
Vocal fold lesions have traditionally been treated under general anaesthesia, using a tube placed through the mouth and a microscope (suspension laryngoscopy). Because the blue laser can be passed through the channel of a thin endoscope, some procedures can now be carried out in awake patients under local anaesthetic in the office.1,3
In a study of patients with polyps and Reinke’s oedema, voice questionnaire results were similar in 52 patients treated in the office with the blue laser and 91 patients operated on under general anaesthesia with cold instruments. The office procedure took 4.9 minutes on average and surgery under general anaesthesia 37.1 minutes, and no adverse events were reported.3 In another series of 11 procedures in awake patients, voice questionnaire scores improved and no complications occurred.1
Not every patient is suited to an office procedure. For people with a strong gag reflex, lesions that cannot be seen well with the endoscope, or lesions whose deeper part needs precise removal, the operating theatre may be more appropriate. The method is chosen from the examination findings.
| Has a lesion been found on your vocal cords?
Tell us briefly what concerns you; if laryngoscopy or stroboscopy recordings or reports are needed, we will explain how to share them. Which treatment may be suitable depends on the type and position of the lesion.
The limits of the blue laser
Most publications on the blue laser are small, retrospective series, and the authors themselves call for larger studies.1,2 The method is promising, but there is not yet strong comparative evidence that it is better than conventional surgery for every lesion. A newer technology does not automatically mean a better or safer result.
For vocal fold cysts, the main treatment is surgery that carefully removes the cyst wall. In a series of three cysts treated in the office with the blue laser, the lesions regressed, but the authors stressed that the possible risk of vocal fold scarring without binocular microscopic examination should not be underestimated.5 For the non-surgical course of cysts, see can a vocal fold cyst improve without surgery?.
After treatment
Depending on the procedure and its extent, a short period of voice rest may be advised. After vocal fold surgery, long silence has not been shown to give better results than short rest.6 See voice rest after vocal cord surgery for the rest period and the return to voice use.
For conditions that can recur, such as papilloma, regular examinations are part of treatment. For lesions linked to voice strain, such as polyps and nodules, voice therapy and changes in voice habits help reduce the risk of the lesion returning.
Frequently asked questions
Is blue laser vocal cord treatment painful?
Can the blue laser be used for every vocal cord lesion?
How many sessions are needed?
It depends on the lesion. In a series of 47 patients, an average of 2.1 sessions was needed.2 Conditions that recur, such as papilloma, may need repeat treatment.
Is office treatment as effective as surgery under general anaesthesia?
For polyps and Reinke’s oedema, voice questionnaire results were similar with the two methods.3 Suitability is decided at examination.
How much voice rest is needed after blue laser treatment?
It depends on the extent of the procedure; a short rest is often enough.6 Your doctor will set the period.
Can the blue laser damage my voice?
Will blue laser cure papilloma permanently?
Papillomas can return after treatment, so laser treatment is planned together with long-term follow-up.
Questions to ask your ENT specialist
- What exactly is the lesion on my vocal cord?
- Is an office procedure or the operating theatre better for me, and why?
- What options are there besides the blue laser?
- How many sessions might be needed?
- How much voice rest will I need afterwards?
| Let us talk through the options for your vocal cord lesion
Tell us briefly about your job and how long your symptoms have lasted; if previous examination recordings are needed, we will explain how to share them. Treatment is chosen according to the type of lesion and how you use your voice.
Clinical references
- Hamdan AL, Ghanem A. Un-sedated Office-Based Application of Blue Laser in Vocal Fold Lesions. J Voice. 2023;37(5):785-789.
- González-Herranz R, et al. Transoral Flexible Laser Surgery of the Larynx with Blue Laser. J Clin Med. 2023;12(16):5250.
- Filauro M, et al. Office-Based Treatment of Vocal Fold Polyps and Reinke’s Edema: A Rational Comparison With Suspension Laryngoscopy. Laryngoscope. 2023;133(10):2665-2672.
- Miller BJ, et al. Applications of Office-Based 445 nm Blue Laser Transnasal Flexible Laser Surgery: A Case Series and Review of Practice. Ear Nose Throat J. 2021;100(1_suppl):105S-112S.
- Hamdan AL, et al. Office-Based Laser Therapy for Vocal Fold Cyst: A Promising Alternative Therapy Using the 445 nm Blue Laser. J Voice. 2025;39(6):1670-1675.
- Chi HW, et al. Effects of Different Voice Rest on Vocal Function After Microlaryngeal Surgery: A Systematic Review and Meta-Analysis. Laryngoscope. 2023;133(1):154-161.
This article is general information, not a personal diagnosis or treatment recommendation. Seek prompt medical care for urgent symptoms.